Angle that is smaller than a right angle (less than 90Â°). Angle formed by two lines or two perpendicular planes that measures 90Â°. Symbol denoting that a straight line meets another at a right angle. Symbol denoting that two straight lines do not remain at a constant distance from one other. Symbol denoting that two straight lines remain at a constant distance from one another.
Constriction vs. Dilation. Constriction and dilation are opposite, but related, processes in the body. Whereas dilation is an opening or widening of a structure or passageway to increase material flow, constriction leads to a decrease in material flow by closing the passage.
Examples of CONSTRICT. 1  The drug is used to constrict blood vessels. 2  The declining economy has constricted job opportunities. 3  a life constricted by poverty and disease. 4  He felt constricted by their notions of what was proper.ull Definition of CONSTRICT. transitive verb. 1. a: to make narrow or draw together. 2. : to stultify, stop, or cause to falter: inhibit. intransitive verb.